2020 Harley-Davidson FLTRK Road Glide Limited — Maintenance & Ownership Guide
Routine Maintenance
Key maintenance tasks to keep your 2020 Harley-Davidson FLTRK Road Glide Limited running reliably.
Oil & Filter
Requires ~4.5 to 5.0 quarts of 20W-50 oil. Intervals are every 5,000 miles after the initial 1,000-mile break-in.
Coolant
Check levels in the reservoir located in the right-side lower fairing; uses Harley-Davidson extended life coolant.
Spark Plugs
Uses four spark plugs (two per cylinder). Standard type is 6R10; popular upgrade is NGK CR9EIX.
Common Wear Items
Parts that wear over time on the 2020 Harley-Davidson FLTRK Road Glide Limited and should be inspected regularly.
Brake Pads
Heavy touring bike (900lb+) wears through rear pads quickly, especially if using linked braking frequently.
Tires
Dunlop D407/D408 series are standard; rear tires typically last 8,000-12,000 miles depending on load and riding style.
Drive Belt
Inspect for debris damage or cracking every service; proper tension is critical for transmission bearing life.
Popular Upgrades
The most popular aftermarket upgrades for the 2020 Harley-Davidson FLTRK Road Glide Limited.
Exhaust
Slip-on mufflers are the most common upgrade to improve the V-twin sound and reduce heat from the stock mufflers.
Seat
While the stock seat is plush, many owners upgrade to the H-D Hammock or Sundowner for superior long-distance comfort.
Windshield
The stock 13.5-inch screen is often replaced with taller or 'recurve' styles to further reduce helmet buffeting.
Common Replacement Parts
Parts that commonly need replacing on the 2020 Harley-Davidson FLTRK Road Glide Limited.
Battery
Requires a high-CCA 30Ah battery (e.g., YTX30L-BS) to turn over the high-compression 114 engine.
Wheel Bearings
ABS-equipped bearings can fail prematurely if pressure-washed or due to high mileage loads.
Used Buying Inspection Checklist
What to look for when buying a used 2020 Harley-Davidson FLTRK Road Glide Limited.
Brake Light Recall
Ensure the software update for the unintended brake light illumination (Recall 0178) has been performed.
RDRS Equipment
Check if the bike was optioned with RDRS (look for the 'TC' button on the right hand controls and TPMS on the dash).
Lower Fairing Leaks
Check the radiators and hoses inside the lowers for signs of coolant leaks, a known weak point in early Twin-Cooled systems.
Transmission Fluid Level
Check for 'fluid transfer' where transmission oil migrates to the primary; ensure the primary vent fix was installed if needed.
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